Burn fat and build muscle with this equipment-free cardio-and-strength circuit from Ken Weichert, master fitness trainer for the U.S. Army and creator of an exclusive boot camp class for Crunch Fitness clubs nationwide. With short-but-intense cardio intervals, full-body strength moves, and an extra dose of ab work, you’ll slim down your entire body and tighten your tummy. Do this 10-minute circuit three times in a row for the best 30-minute workout of your life.
Stand with your legs slightly bent, your arms bent, and your hands out to your sides. Begin jumping, leaving only a few inches between your feet and the floor as you hop. At the same time, rotate your shoulders and arms as if you are jumping rope without the rope. Continue for 1 minute and 30 seconds, then move directly to Squats.
Time: 2 minutes
Works: butt, thighs
Stand with your feet hip-width apart and arms at your sides. Keeping your back straight, squat down by bending both your knees and dropping your hips as if you are sitting on a chair; keep your weight directly over your heels. Bend your legs to about 90 degrees, then slowly return to starting position. Repeat for 2 minutes; move directly to Lunges.
Time: 1 minute
Works: butt, thighs, hips
Stand with your feet together and your hands on your hips. Step forward about 3 feet with your left foot, keeping your left knee slightly bent. Balancing on the ball of your right foot and with your shoulders lined up over your hips, bend both knees to lower your body until both your legs are at about 90-degree angles. Return to starting position. Repeat for 30 seconds with your left leg, then do 30 seconds with your right leg, then move directly to Vertical Leg Crunches.